#37658B#37658B

#37658B is a mid, moderate cyan. Relative luminance 0.120; OKLCH L 49.1% C 0.080 H 245.3°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#37658B
RGB	rgb(55, 101, 139)
HSL	hsl(207, 43%, 38%)
HSV	hsv(207, 60%, 55%)
CMYK	cmyk(60.4%, 27.3%, 0%, 45.5%)
CIE-LAB	lab(41.19, -3.67, -25.73)
CIE-LCH	lch(41.19, 25.99, 261.88°)
OKLab	oklab(49.11% -0.0332 -0.0723)
OKLCH	oklch(49.11% 0.08 245.3)
XYZ	xyz(10.8877, 11.9827, 26.1602)
Luminance	0.1198 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37658B #8B5D37

analogous

#378B87 #37658B #373B8B

triadic

#37658B #8B3765 #658B37

tetradic

#37658B #87378B #8B5D37 #3B8B37

square

#37658B #87378B #8B5D37 #3B8B37

split-complementary

#37658B #8B373B #8B8737

monochromatic

#142533 #26455F #37658B #4885B7 #74A2C8

Accessibility & contrast

On white

6.18

#37658B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#37658B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37658B

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37658B	#FFFFFF	#000000	##FFFFFF
##37658B	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#55668D

Deuteranopia (green-blind)

#495D8A

Tritanopia (blue-blind)

#006E72

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #37658b;
/* rgb */ color: rgb(55, 101, 139);
/* oklch */ color: oklch(49.1% 0.080 245.3);

Tailwind

colors: {
  custom: {
    50: '#7590ad',
    500: '#37658b',
    950: '#000000',
  },
}

SCSS

$custom: #37658b;
$custom-light: #7590ad;
$custom-dark: #000000;

JSON

{
  "hex": "#37658b",
  "rgb": {
    "r": 55,
    "g": 101,
    "b": 139
  },
  "hsl": {
    "h": 207.143,
    "s": 43.299,
    "l": 38.039
  },
  "oklch": {
    "l": 0.49109,
    "c": 0.07954,
    "h": 245.3
  },
  "luminance": 0.11984
}

Semantic roles & 50–950 ramp

primary

#37658B

secondary

#B18C6D

accent

#8E55D3

background

#F7F8FA

surface

#EDF0F4

border

#C8CBCE

text

#090C10

muted

#7B7D7F

Preview Lab

Preview with #37658B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →